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not in use; code is reserved for directory assistance applications. 1-NPA-555-01XX is used for fictional telephone numbers; 1-NPA-555-1212 is used for directory assistance; and other 1-NPA-555-XXXX numbers can be used for other 555 services. 556. not in use; available for personal communications services.
Area codes 602, 480, and 623 are telephone area codes in the North American Numbering Plan (NANP) for most of the Phoenix metropolitan area in the U.S. state of Arizona . Area code 602 is the oldest area code in Arizona and was assigned in 1947 for the entire state. Under pressure from population growth and new telecommunications services, the ...
Each three-digit area code has a capacity of 7,919,900 telephone numbers (7,918,900 in the United States). Despite the widespread use of fictional telephone numbers of the form NYX 555-XXXX , only the block of line numbers from 0100 through 0199 are reserved specifically for this purpose, leaving the rest available for assignment.
Coordinates: 47°37′9.37″N 122°20′28.38″W. Numbering plan areas of Washington, with 206 highlighted in red. Area code 206 is a telephone area code in the North American Numbering Plan (NANP) for the U.S. state of Washington. The numbering plan area (NPA) includes Seattle and most of its innermost suburbs.
Area code 414 is a telephone area code of the North American Numbering Plan for the area around and including the city of Milwaukee in the state of Wisconsin. History [ edit ] The area code was created in October 1947, along with area code 715 , as one of the two original area codes assigned to Wisconsin.
Area codes 510 and 341. Coordinates: 37.7°N 122.1°W. Numbering plan areas in California (blue) and border states. Area code 510 is shown in red. Area codes 510 and 341 are telephone area codes in the North American Numbering Plan (NANP) serving much of the East Bay in the U.S. state of California. They cover parts of Contra Costa County and ...
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